Absolute rate coefficients for photorecombination and electron-impact ionization of magnesiumlike iron ions from measurements at a heavy-ion storage ring

被引：16

作者：

Bernhardt, D. ^{[1
]}

Becker, A. ^{[2
]}

Grieser, M. ^{[2
]}

Hahn, M. ^{[3
]}

Krantz, C. ^{[2
]}

Lestinsky, M. ^{[4
]}

Novotny, O. ^{[3
]}

Repnow, R. ^{[2
]}

Savin, D. W. ^{[3
]}

Spruck, K. ^{[1
,2
]}

Wolf, A. ^{[2
]}

Mueller, A. ^{[1
]}

Schippers, S. ^{[1
]}

机构：

[1] Univ Giessen, Inst Atom & Mol Phys, D-35392 Giessen, Germany

[2] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[3] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[4] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 01期

关键词：

CROSS-SECTION MEASUREMENTS; DIELECTRONIC RECOMBINATION; THEORETICAL CALCULATIONS; LABORATORY MEASUREMENTS; SINGLE IONIZATION; ISOELECTRONIC SEQUENCE; ATOMIC DATA; FE-XV; FE13+; EQUILIBRIUM;

D O I：

10.1103/PhysRevA.90.012702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Rate coefficients for photorecombination ( PR) and cross sections for electron-impact ionization (EII) of Fe14+, forming Fe13+ and Fe15+, respectively, have been measured by employing the electron-ion merged-beams technique at a heavy-ion storage ring. Rate coefficients for PR and EII of Fe14+ ions in a plasma are derived from the experimental measurements. Simple parametrizations of the experimentally derived plasma rate coefficients are provided for use in the modeling of photoionized and collisionally ionized plasmas. In the temperature ranges where Fe14+ is expected to form in such plasmas, the latest theoretical rate coefficients of Altun et al. [Astron. Astrophys. 474, 1051 (2007)] for PR and of Dere [Astron. Astrophys. 466, 771 (2007)] for EII agree with the experimental results to within the experimental uncertainties. Common features in the PR and EII resonance structures are identified and discussed.

引用

页数：11

共 37 条

[1] Electron impact ionization measurements at the Heidelberg heavy ion storage ring TSR
Hahn, M.
Bernhardt, D.
Grieser, M.
Krantz, C.
Lestinsky, M.
Mueller, A.
Novotny, O.
Repnow, R.
Schippers, S.
Wolf, A.
Savin, D. W.
XXVII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC 2011), PTS 1-15, 2012, 388
[2] LIFETIME MEASUREMENTS WITH FULLERENE IONS IN A HEAVY-ION STORAGE-RING
ANDERSEN, LH
BRINK, C
HAUGEN, HK
HVELPLUND, P
YU, DH
HERTEL, N
MOLLER, SP
CHEMICAL PHYSICS LETTERS, 1994, 217 (03) : 204 - 209
[3] ELECTRON-IMPACT IONIZATION CROSS-SECTIONS AND IONIZATION RATE COEFFICIENTS FOR ATOMS AND IONS
LOTZ, W
ASTROPHYSICAL JOURNAL, 1967, S 14 : 207 - &
[4] ELECTRON-IMPACT IONIZATION CROSS-SECTIONS AND IONIZATION RATE COEFFICIENTS FOR ATOMS AND IONS FROM HYDROGEN TO CALCIUM
LOTZ, W
ZEITSCHRIFT FUR PHYSIK, 1968, 216 (03): : 241 - &
[5] ELECTRON-IMPACT IONIZATION CROSS-SECTIONS AND IONIZATION RATE COEFFICIENTS FOR ATOMS AND IONS FROM SCANDIUM TO ZINC
LOTZ, W
ZEITSCHRIFT FUR PHYSIK, 1969, 220 (05): : 466 - &
[6] ELECTRON-IMPACT IONIZATION RATE COEFFICIENTS AND CROSS-SECTIONS FOR HIGHLY IONIZED IRON
YOUNGER, SM
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1982, 27 (05): : 541 - 544
[7] ELECTRON-IMPACT IONIZATION OF FE15+ IONS - AN ION STORAGE-RING CROSS-SECTION MEASUREMENT
LINKEMANN, J
MULLER, A
KENNTNER, J
HABS, D
SCHWALM, D
WOLF, A
BADNELL, NR
PINDZOLA, MS
PHYSICAL REVIEW LETTERS, 1995, 74 (21) : 4173 - 4176
[8] Plasma rate coefficients for electron-impact ionization of Xeq+ ions (q=8, ..., 17)
Borovik, A., Jr.
Gharaibeh, M. F.
Schippers, S.
Mueller, A.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2015, 48 (03)
[9] STRUCTURE OF VERY HEAVY FEW-ELECTRON IONS - NEW RESULTS FROM THE HEAVY-ION STORAGE-RING, ESR
MOKLER, PH
STOHLKER, T
KOZHUHAROV, C
MOSHAMMER, R
RYMUZA, P
BOSCH, F
KANDLER, T
PHYSICA SCRIPTA, 1994, T51 : 28 - 38
[10] New light on electron-ion collisions from heavy-ion storage ring experiments
Müller, A
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1999, 357 (1755): : 1279 - 1296

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